Live Nation sent over this info: NKOTB and BSB shocked and delighted fans when they took the stage together for a medley at the sold out NKOTB Radio City Music Hall show. The unprecedented performance wowed the audience and excited fans across the country. The collaboration also ignited rumors that swirled for months. And now, as announced exclusively on Ryan Seacrest's radio show, NKOTB and BSB are making it official.

The public will get their first sneak peak of what's to come on November 21, 2010 as all nine men perform LIVE at the American Music Awards in their first joint televised appearance.

"It started when we got together at Radio City Music Hall a few months back. We wanted to do something big for the crowd in NY. So we got the Backstreet Boys to come down to Radio City and we put together a performance of 'I Want It That Way' in about 5 minutes. It was electric. Something happened when they came out on stage. The crowd went to a place that we never heard it go to before," said the guys of New Kids on the Block live on air with Ryan Seacrest this morning. "We started talking, people started talking, and it seemed right. It's really just going to be an amazing night of pop music and pop culture."

"We are blessed. This is a wonderful opportunity for fans of all— not only New Kids fans, or Backstreet fans, but fans of music. It's not about who opens or who closes. It's a night of continuous music, hit after hit. We are going to give people a show to remember." added the Backstreet Boys. "We want to make this a night that people will never forget. We want to give them something to take them to another place that they've never been before."

NKOTBSB on ONE STAGE will begin in the summer of 2011. Tickets to this historic event go on sale beginning November 19th at Ticketmaster.com and Live Nation.com.